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DisplayHP ProBook 4420s WH291UT 
Screen Size14.00 "
Display Screen TypeActive Matrix TFT Color LCD
Aspect Ratio16:9
Screen ModeWXGA
Screen Resolution1366 x 768
Backlight TechnologyLED
Graphics Controller ManufacturerIntel
Graphics Memory TechnologyDDR3 SDRAM
Graphics Memory AccessibilityShared
Hard DriveHP ProBook 4420s WH291UT
Storage Size320 GB
Hard Drive InterfaceSerial ATA/300
Hard Drive RPM7200
Solid State Drive CapacityNo
Optical Drive TypeDVD-Writer
MemoryHP ProBook 4420s WH291UT
Memory Card SupportedMemory Stick, Memory Stick PRO, Secure Digital (SD) Card, MultiMediaCard (MMC), xD-Picture Card
Standard Memory2 GB
Maximum Memory8 GB
Memory TechnologyDDR3 SDRAM
Memory StandardDDR3-1333/PC3-10666
Memory Card ReaderYes
NetworkHP ProBook 4420s WH291UT
Wireless LANYes
Wireless LAN ManufacturerAtheros
Wireless LAN Model9285G
Wireless LAN StandardIEEE 802.11n
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 2.1
DimensionsHP ProBook 4420s WH291UT
Height1.1"
Width13.2"
Depth9.2"
Detailed SpecsHP ProBook 4420s WH291UT
WebcamYes
MicrophoneYes
ProcessorHP ProBook 4420s WH291UT
Processor ManufacturerIntel
Processor TypeCore i3
Processor Modeli3-350M
Processor Speed2.26 GHz
Processor CoreDual-core (2 Core)
Cache3 MB
Chipset ManufacturerIntel
Chipset ModelHM57 Express
SoftwareHP ProBook 4420s WH291UT
Operating SystemWindows XP Professional Upgradable to Windows 7 Professional
Operating System Architecture32-bit
Input DevicesHP ProBook 4420s WH291UT
Pointing Device TypeClickPad
I/O ExpansionsHP ProBook 4420s WH291UT
Expansion Slot TypeExpressCard/34
BatteryHP ProBook 4420s WH291UT
Battery ChemistryLithium Ion (Li-Ion)
InterfacesHP ProBook 4420s WH291UT
HDMIYes
Total Number of USB Ports3
Number of USB 2.0 Ports3
VGAYes
eSATA/USB ComboYes